"You try to swim it ashore and you get caught. It's almost like swimming in one of those infinity pools or like running on a treadmill. You're just not getting anywhere," Lt. Timothy Cline said.

Rough surf is something Floridians are used to, but Ocean Rescue doesn't want anyone to take any chances. The plan is to add patrols to the most dangerous areas and be up to 50 lifeguards by Fourth of July Friday.

Despite those preparations, there is also a sense of business as usual.

If you get caught in a rip current, Ocean Rescue says to swim parallel to the shore and try to get the attention of a lifeguard as fast as you can. To date, rip currents are still the leading cause of death in the state of Florida.